A heat pump works much the same way an air conditioning unit works with a few differences. In the cooling mode it transfers heat outside from the inside and in the heating mode it transfer heat from the outside to the inside*.
Union, Maine. Union is a town in Knox County, Maine, United States. The population was 2,259 at the 2010 census. It is home to the Matthews Museum of Maine Heritage and annual Union Fair.
Union Township is one of seven townships in Perry County, Indiana, United States. As of the 2010 census, its population was 557 and it contained 293 housing units.